SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2013, Vol. 21 ›› Issue (2): 113-120.DOI: 10.1016/S1004-9541(13)60448-6

• 材料与产品工程 •    下一篇

ZrO2/PMMA Nanocomposites: Preparation and Its Dispersion in Polymer Matrix

范方强, 夏正斌, 李清英, 李忠, 陈焕钦   

  1. School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
  • 收稿日期:2011-10-25 修回日期:2012-05-24 出版日期:2013-02-28 发布日期:2013-03-13
  • 通讯作者: XIA Zhengbin
  • 基金资助:

    Supported by Production, Teaching & Research Combination Project for Universities in Guangdong Province (cgzhzd0904), Department of Education of Guangdong Province, China.

ZrO2/PMMA Nanocomposites: Preparation and Its Dispersion in Polymer Matrix

FAN Fangqiang, XIA Zhengbin, LI Qingying, LI Zhong, CHEN Huanqin   

  1. School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
  • Received:2011-10-25 Revised:2012-05-24 Online:2013-02-28 Published:2013-03-13

摘要: ZrO2/PMMA nanocomposite particles are synthesized through an in-situ free radical emulsion polymerization based on the silane coupling agent (Z-6030) modified ZrO2 nanoparticles, and the morphology, size and its distribution of nanocomposite particles are investigated. Scanning electron microscopy (SEM) images demonstrate that the methyl methacrylate (MMA) feeding rate has a significant effect on the particle size and morphology. When the MMA feeding rate decreases from 0.42 ml·min-1 to 0.08 ml·min-1, large particles (about 200-550 nm) will not form, and the size distribution become narrow (36-54 nm). The average nanocomposite particles size increases from 34 nm to 55 nm, as the MMA/ZrO2 nanoparticles mass ratio increased from 4︰1 to 16︰1. Regular spherical ZrO2/PMMA nanocomposite particles are synthesized when the emulsifier OP-10 concentration is 2 mg·ml-1. The nanocomposite particles could be mixed with VAc-VeoVa10 polymer matrix just by magnetic stirring to prepare the ZrO2/PMMA/VAc-VeoVa10 hybrid coatings. SEM and atomic force microscopy (AFM) photos reveal that the distribution of the ZrO2/PMMA nanocomposite particles in the VAc-VeoVa10 polymer matrix is homogenous and stable. Here, the grafted-PMMA polymer on ZrO2 nanoparticles plays as a bridge which effectively connects the ZrO2 nanoparticles and the VAc-VeoVa10 polymer matrix with improved comparability. In consequence, the hybrid coating with good dispersion stability is obtained.

关键词: ZrO2 nanoparticles, core-shell structure, monomer feeding rate, dispersion stability

Abstract: ZrO2/PMMA nanocomposite particles are synthesized through an in-situ free radical emulsion polymerization based on the silane coupling agent (Z-6030) modified ZrO2 nanoparticles, and the morphology, size and its distribution of nanocomposite particles are investigated. Scanning electron microscopy (SEM) images demonstrate that the methyl methacrylate (MMA) feeding rate has a significant effect on the particle size and morphology. When the MMA feeding rate decreases from 0.42 ml·min-1 to 0.08 ml·min-1, large particles (about 200-550 nm) will not form, and the size distribution become narrow (36-54 nm). The average nanocomposite particles size increases from 34 nm to 55 nm, as the MMA/ZrO2 nanoparticles mass ratio increased from 4︰1 to 16︰1. Regular spherical ZrO2/PMMA nanocomposite particles are synthesized when the emulsifier OP-10 concentration is 2 mg·ml-1. The nanocomposite particles could be mixed with VAc-VeoVa10 polymer matrix just by magnetic stirring to prepare the ZrO2/PMMA/VAc-VeoVa10 hybrid coatings. SEM and atomic force microscopy (AFM) photos reveal that the distribution of the ZrO2/PMMA nanocomposite particles in the VAc-VeoVa10 polymer matrix is homogenous and stable. Here, the grafted-PMMA polymer on ZrO2 nanoparticles plays as a bridge which effectively connects the ZrO2 nanoparticles and the VAc-VeoVa10 polymer matrix with improved comparability. In consequence, the hybrid coating with good dispersion stability is obtained.

Key words: ZrO2 nanoparticles, core-shell structure, monomer feeding rate, dispersion stability